Xu Yao chose to answer the question irrelevantly, "Mo Xiaoqing, the surveillance video of your last interrogation of Liu Lixuan was this one, right?"

Mo Xiaoqing leaned over to the notebook and took a look, "Yes, it's this one. When we interrogated Zhou Rui, he kept emphasizing that Huang Yousheng was the mastermind behind the scenes.

Captain Xu, do we need to invite Huang Yousheng to the criminal police team to interrogate him?"

Xu Yao said calmly: "No, I have already arranged for Liu Xiaobo to interrogate him.

Besides, I am sure he can't be the mastermind."

Xu Yao then put his finger to his lips and made a silencing gesture, asking Mo Xiaoqing to watch this surveillance video carefully.

After watching it, Xu Yao asked Mo Xiaoqing what she thought?

Mo Xiaoqing shook her head and said, "I feel that Liu Lixuan was quite sincere during the interrogation."

"Sincere?!" Xu Yao laughed out loud,

"During the interrogation, he mostly used his hands to cross his chest. Obviously, this is a self-protection psychological action.

Look at this part."

Xu Yao turned the video to the back, "Look here, Liu Lixuan very excitedly denied that he killed his sister.

The sincerity of his emotions and actions really made people think that he could not be the murderer.

But later, after he calmed down, all his actions were exactly the opposite.

He sat on the chair for several She stroked her own forehead with her hand, pursed her lips, raised her facial muscles, but lowered her lips.

This was obviously a psychological expression of guilt.

At the same time, he touched his nose unconsciously several times, and although he shouted angrily that he did not kill his sister.

But his eyes were flickering during the whole process, and he never focused on your eyes.

That's because he is guilty and he lied. "

Mo Xiaoqing opened her mouth wide, impressed by the professional skills of Captain Xu.

Suddenly, Mo Xiaoqing shouted, "Captain Xu, stop here."

The surveillance screen froze, Xu Yao turned his head and looked at her in confusion, only to see Mo Xiaoqing's mouth opened in excitement,

"I finally know why the watch on the call girl's hand is so familiar?"

Mo Xiaoqing pulled up the video of the call girl in the elevator and pointed it to Xu Yao, "The watches worn by the people in these two videos are very similar. The call girl is indeed Liu Lixuan in disguise."

As she spoke, she quickly searched for Liu Lixuan's daily photos on the Internet. Sure enough, in several very clear photos, Liu Lixuan was wearing the same watch.

After comparing, the two watches are indeed almost identical.

Xu Yao said, "It seems that Liu Lixuan's alibi was all forged."

"But there is one thing I still don't understand. The bar girl who checked into the room with Liu Lixuan has been insisting that she and Liu Lixuan chatted all night. I don't think she is lying." Mo Xiaoqing was very confused.

Xu Yao asked Mo Xiaoqing to find the hotel girl's interrogation record. Fortunately, Mo Xiaoqing was well prepared and had brought all the information related to Liu Lixuan.

After the record was handed over, Xu Yao looked at it attentively. After three minutes, he said, "The bar girl did not lie."

"But isn't this a contradiction?" Mo Xiaoqing was very confused.

Xu Yao raised his hand and swept the short hair on Mo Xiaoqing's head, shook his head, "It seems that you still need to be trained.

There are still many areas you need to learn, listen to me analyze it for you.

Your confession mentioned that the bar girl's mobile phone was out of power that night, and she had to use an old-fashioned mobile phone with a clockwork to check the time.

And she was very sleepy when she first arrived at the hotel. After taking a shower and drinking the sobering tea given to her by Liu Lixuan, she immediately became energetic. The problem actually lies here. After the bar girl drank the sobering tea, she did not become more sober, but fainted directly.

Liu Lixuan changed into women's clothes at this time and came out of the hotel. He got on a taxi and drove directly to his sister's villa.

I believe he should change cars halfway. After all, cars have license plates, which can easily expose their identities. Most electric vehicles in Kuala Kangsar are not licensed, so he can rent an electric vehicle to go to the villa at will.

He went to the villa to do what he had to do, and then calmly returned to the hotel.

After returning, he immediately slowed down the bar girl's watch by nearly an hour. Then he carried the sleepy bar girl to the bathroom, woke her up, and deliberately said that she fell asleep in the bath. After carrying her out, he gave her the so-called sobering tea.

The hotel girl's watch had been adjusted, so she mistakenly thought that she had come out of the bath, and she kept chatting with Liu Lixuan. "

Mo Xiaoqing suddenly realized, "Liu Lixuan is the third mysterious man we have been looking for!

But the strange thing is that he only stabbed his sister's body five times, why did he go to great lengths to hide it?"

"He is indeed the third mysterious man we are looking for, but he did not just stab his sister's body five times."

Mo Xiaoqing was a little confused by Xu Yao's words, "Captain Xu, what do you mean?" "What

it means is that we were fooled by Liu Lixuan. From the very beginning, he released a smoke bomb to divert our police investigation.

He was the one who found his sister's body in the beginning, and his performance was very realistic. The two siblings depended on each other. No one would believe that he hated his sister so much in his heart that he even killed her.

Because he had an alibi from the beginning."

Mo Xiaoqing became more and more confused as she listened, and asked dully, "Does that mean Liu Lixuan is the real murderer?"

Xu Yao replied, "Now we're just waiting for Sister Ya's toxicology report."

He had just finished speaking when Lin Yalin called.

"Xu Yao, you are indeed very good at predicting things. The holes we found in the tiles on Liu Lidan's balcony contained biological toxins.

A small part of it was also left in Liu Lidan's body.

This kind of toxin is not used in China. China has always strictly managed special chemical toxins, let alone biological toxins. Ordinary people are unlikely to come into contact with them. "

Xu Yao pondered for a while and replied, "Liu Lixuan has many years of experience studying abroad, so this does make sense."

Mo Xiaoqing couldn't help but exclaimed after hearing this, "Liu Lidan was poisoned to death! If she was poisoned by an acute poison, how did the murderer poison her?

Liu Lixuan went to the scene long after Liu Lidan's death."

Xu Yao replied, "You should still remember that there was a telescope in Liu Lidan's bedroom, but when we police arrived at the first scene, the telescope had disappeared.

Let me ask you, what if the murderer sent the poisoning tool to the crime scene in advance?"

Mo Xiaoqing finally understood, then, the other telescope was the poisoning weapon? !

Xu Yao said calmly: "I think it shouldn't be difficult to modify a telescope into a poisoning tool with a built-in launcher."

"Then Captain Xu means that the venom is shot out from the telescope.

My God, this murderer is really smart. He could have sent the telescope to Liu Lidan in advance, and Liu Lidan happened to be an astronomy enthusiast."